2 files changed, 59 insertions, 16 deletions

diff --git a/app/assets/javascripts/emoji/index.js b/app/assets/javascripts/emoji/index.js
index cd8dff40b88..36542315c4c 100644
--- a/app/assets/javascripts/emoji/index.js
+++ b/app/assets/javascripts/emoji/index.js
@@ -1,13 +1,58 @@
 import _ from 'underscore';
-import emojiMap from 'emojis/digests.json';
+import createFlash from '~/flash';
+import { s__ } from '~/locale';
 import emojiAliases from 'emojis/aliases.json';
+import axios from '../lib/utils/axios_utils';
 
-export const validEmojiNames = [...Object.keys(emojiMap), ...Object.keys(emojiAliases)];
+import AccessorUtilities from '../lib/utils/accessor';
+
+let emojiMap = null;
+let validEmojiNames = null;
+
+export const EMOJI_VERSION = '1';
+const EMOJI_VERSION_LOCALSTORAGE = `EMOJIS_${EMOJI_VERSION}`;
+
+const isLocalStorageAvailable = AccessorUtilities.isLocalStorageAccessSafe();
+
+export function initEmojiMap() {
+  return new Promise((resolve, reject) => {
+    if (emojiMap) {
+      resolve(emojiMap);
+    } else if (isLocalStorageAvailable && window.localStorage.getItem(EMOJI_VERSION_LOCALSTORAGE)) {
+      emojiMap = JSON.parse(window.localStorage.getItem(EMOJI_VERSION_LOCALSTORAGE));
+      validEmojiNames = [...Object.keys(emojiMap), ...Object.keys(emojiAliases)];
+      resolve(emojiMap);
+    } else {
+      // We load the JSON from server
+      axios
+        .get(
+          `${gon.asset_host || ''}${gon.relative_url_root ||
+            ''}/-/emojis/${EMOJI_VERSION}/emojis.json`,
+        )
+        .then(({ data }) => {
+          emojiMap = data;
+          validEmojiNames = [...Object.keys(emojiMap), ...Object.keys(emojiAliases)];
+          resolve(emojiMap);
+          if (isLocalStorageAvailable) {
+            window.localStorage.setItem(EMOJI_VERSION_LOCALSTORAGE, JSON.stringify(emojiMap));
+          }
+        })
+        .catch(err => {
+          createFlash(s__('Emojis|Something went wrong while loading emojis.'));
+          reject(err);
+        });
+    }
+  });
+}
 
 export function normalizeEmojiName(name) {
   return Object.prototype.hasOwnProperty.call(emojiAliases, name) ? emojiAliases[name] : name;
 }
 
+export function getValidEmojiNames() {
+  return validEmojiNames;
+}
+
 export function isEmojiNameValid(name) {
   return validEmojiNames.indexOf(name) >= 0;
 }
@@ -36,8 +81,8 @@ export function getEmojiCategoryMap() {
     };
     Object.keys(emojiMap).forEach(name => {
       const emoji = emojiMap[name];
-      if (emojiCategoryMap[emoji.category]) {
-        emojiCategoryMap[emoji.category].push(name);
+      if (emojiCategoryMap[emoji.c]) {
+        emojiCategoryMap[emoji.c].push(name);
       }
     });
   }
@@ -58,8 +103,9 @@ export function getEmojiInfo(query) {
 }
 
 export function emojiFallbackImageSrc(inputName) {
-  const { name, digest } = getEmojiInfo(inputName);
-  return `${gon.asset_host || ''}${gon.relative_url_root || ''}/assets/emoji/${name}-${digest}.png`;
+  const { name } = getEmojiInfo(inputName);
+  return `${gon.asset_host || ''}${gon.relative_url_root ||
+    ''}/-/emojis/${EMOJI_VERSION}/${name}.png`;
 }
 
 export function emojiImageTag(name, src) {
@@ -68,9 +114,8 @@ export function emojiImageTag(name, src) {
 
 export function glEmojiTag(inputName, options) {
   const opts = { sprite: false, forceFallback: false, ...options };
-  const { name, ...emojiInfo } = getEmojiInfo(inputName);
+  const name = normalizeEmojiName(inputName);
 
-  const fallbackImageSrc = emojiFallbackImageSrc(name);
   const fallbackSpriteClass = `emoji-${name}`;
 
   const classList = [];
@@ -79,24 +124,19 @@ export function glEmojiTag(inputName, options) {
     classList.push(fallbackSpriteClass);
   }
   const classAttribute = classList.length > 0 ? `class="${classList.join(' ')}"` : '';
+
   const fallbackSpriteAttribute = opts.sprite
     ? `data-fallback-sprite-class="${fallbackSpriteClass}"`
     : '';
-  let contents = emojiInfo.moji;
-  if (opts.forceFallback && !opts.sprite) {
-    contents = emojiImageTag(name, fallbackImageSrc);
-  }
+  const forceFallbackAttribute = opts.forceFallback ? 'data-force-fallback="true"' : '';
 
   return `
     <gl-emoji
       ${classAttribute}
       data-name="${name}"
-      data-fallback-src="${fallbackImageSrc}"
       ${fallbackSpriteAttribute}
-      data-unicode-version="${emojiInfo.unicodeVersion}"
-      title="${emojiInfo.description}"
+      ${forceFallbackAttribute}
     >
-      ${contents}
     </gl-emoji>
   `;
 }
diff --git a/app/assets/javascripts/emoji/support/index.js b/app/assets/javascripts/emoji/support/index.js
index 1f7852dd487..ed9bfb8bc78 100644
--- a/app/assets/javascripts/emoji/support/index.js
+++ b/app/assets/javascripts/emoji/support/index.js
@@ -5,6 +5,9 @@ import getUnicodeSupportMap from './unicode_support_map';
 let browserUnicodeSupportMap;
 
 export default function isEmojiUnicodeSupportedByBrowser(emojiUnicode, unicodeVersion) {
+  // Our Spec browser would fail producing emoji maps
+  if (/\bHeadlessChrome\//.test(navigator.userAgent)) return true;
+
   browserUnicodeSupportMap = browserUnicodeSupportMap || getUnicodeSupportMap();
   return isEmojiUnicodeSupported(browserUnicodeSupportMap, emojiUnicode, unicodeVersion);
 }